The mooring is
deployed after the ITP 3 surface package is in place, although later plywood
covered in snow will be situated under the top float to reduce ablation of the
ice floe by the buoy.

Photos by Chris
Linder.

ITP 3 and IMB 07950 were the second
Ice Based Observatory (IBO) deployed during JWACS 2005.Without either ship’s propulsion (while a
main shaft bearing on the ship was being repaired) or helicopter support
(grounded), the personnel and gear were deployed over the port side of the CCGS
Louis S St. Laurent onto a small (50 m diameter) 3.35 m thick ice floe after
several days of surveying and false starts interrupted by the formation of cracks
in the ice.

On August 23, a bridge was built to
cross a large (4 m) gap between floes to the ITP deployment site. It took only about 3.5 hours overall to
deliver all of the ITP gear to the site, deploy ITP 3, and return with the
installation equipment. Meanwhile, deploying IMB 07950 took about an hour and a
half to drill the holes and install the sensors and buoy.Subsequently, the wires were covered with
snow.